<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>登录页</title>
</head>
<body>
    <form action="/doLogin" method="post">
        用户名：<input name="username" />
        <br/>
        密码：<input name="password"  type="password"/>
        <br/>
        <input type="hidden" name="url" th:value="${url}">
        <button type="submit">登录</button>
    </form>

</body>
</html>